Scientist Atom Contributions

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Chemistry

COLLEGE

Last updated 3:40 PM on 9/9/26
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6 Terms

1
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J.J Thomson

Electron w/ ray tube beam. Plum-pudding model for structure of an atom

2
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Milikan & Fletcher

mass + charge of an electron from oil-drop

3
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Becquerel

invisible, natural radiation. atom is divisible

4
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Marie Curie

radioactivity deep inside atom (atom is divisible)

5
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Chadwick

neutrons from beryllium sheet bombarding

6
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Rutherford

nucleus from gold foil bombarding